Transactions . es and angles, with chain drive, is hinged on a pivot so thatit can be moved horizontally 8 feet in either direction, and canbe lifted up horizontally for stowing away. A shoot is fitted tothe end of the jib, and is capable of being raised and lowered * For short description, see Appendix II., page 251. COAL-SHIPMEXT AXD THE LAYIXG-OUT OF STAITHE HEADS. 177 to an angle of 30 degrees above and 40 degrees below the centre-line of the movable belt; and there is no loss of coal at anyportion of the appliance or hopper, the breakage of coal beingalso reduced to a minimum. Each convey
Transactions . es and angles, with chain drive, is hinged on a pivot so thatit can be moved horizontally 8 feet in either direction, and canbe lifted up horizontally for stowing away. A shoot is fitted tothe end of the jib, and is capable of being raised and lowered * For short description, see Appendix II., page 251. COAL-SHIPMEXT AXD THE LAYIXG-OUT OF STAITHE HEADS. 177 to an angle of 30 degrees above and 40 degrees below the centre-line of the movable belt; and there is no loss of coal at anyportion of the appliance or hopper, the breakage of coal beingalso reduced to a minimum. Each conveyor is capable of deal-ing with all classes of coal and coke, large and small, when thejib is at an angle of 40 degrees above the horizontal, and at therate of 500 tons when the jib is horizontal. The movable belt is 4 feet wide by H feet deep, and iselectrically driven; the belt-driving motor is of 35-brake horse-power, and the lifting motor of 20-brake horsepower, the wholebeing self-contained on the Fig. 37.—Ransome and Rapier Coal-shipping Arrangement,Wallsend Coal Companys Staithe (Tyne). (G) Cranes. (a) Fixed Crane with Wagon : (1) Ransome and Rapier Ar-rangement at Wallsend Colliery.—The Wallsend colliery staithehas been briefly described by Mr. J. M. Moncrieff.* It is con-nected directly with the colliery yard by a double line of railway,one full and one empty way. The full way falls from the colliery* Trans. Inst. , 1898, vol. xv., page 75. 178 COAL-SHIPMEXT AXD THE LAYING-OUT OF STAITHE HEADS. to the staithe head with a gradient of about 1 in 70, the wagonsgravitating to the staithe head in sets. The empty way also fallsfrom the colliery for a considerable distance with a steeper gradi-ent than the full way, and it also falls back from the staithe headto form a bay for the empty wagons to gather in sets, to be takento the colliery yard by locomotives. The staithe head is builtapproximately triangular, its base forming the full and
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